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Infosys Placement Sample Test Paper

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1) A man collects cigarette stubs and makes one full cigarette with every 8 stubs. If he gets 64 stubs how many full cigarettes can he smoke. Ans: 81! #) A soldier looses his way in a thick $ungle. At random he walks from his cam% but mathematically in an interesting fashion. &irst he walks one mile 'ast then half mile to (orth. hen 1*4 mile to +est, then 1*8 mile to -outh and so on making a loo%. &inally how far he is from his cam% and in which direction. Ans: istance travelled in north and south directions 1*# / 1*8 1*0# / 1*1#8 1*1# / and so on ! 1*#*221/2/1*4)) -imilarly in east and west directions 1/ 1*4 1*16 / 1*64 1*#6 / and so on ! 1*22 1/ 2 / 1*4)) Add both the answers 0) 3ow can 1 be written as a %roduct of two factors neither of them containing 5eros Ans: # %ower %ower 4) 7onversation between two mathematcians:
First
: I have three childern. he %roduct of their ages is 06. If you sum their ages, it is eactly same as my neighbours door number on my left.he second mathematician verfies the door number and says that it is not sufficient. hen the first says 9 k one more clue is that my youngest is really the youngest9. Immmediately the second mathematician answers . 7an you answer the ;uestion asked by the first mathematician< +hat are the childeren ages< Ans 1,6 and 6) =ight glows for every 10 seconds . 3ow many times did it glow between 1:>:8 and 0:#:4> am.Ans : 080 1 ! 084 6) men are arranged in an array of 1 rows and columns according to their heights. allest among each row of all are asked to fall out. And the shortest among them is A.
-imilarly after resuming that to their srcinal %odsitions that the shortest among each column are asked to fall out. And the tallest among them is ? . (ow who is taller among A and ? < Ans A >) A %erson with some money s%ends1*0 for cloths, 1* of the remaining for food and 1*4of the remaining for travel. 3e is left with @s 1*/ . 3ow much did he have with him in the begining < Ans: @s #*/ 8) here are si boes containing , > , 14 , 16 , 18 , # balls of either red or blue in colour. -ome boes contain only red balls and others contain only blue. ne sales man sold one bo out of them and then he says 9 I have the same number of red balls left out as that of blue 9. +hich bo is the one he solds out < Ans: otal no of balls ! 8 and 28 /# *#) ! 6*# ! 0 and also 14 16 ! > 18 ! 0 ) A chain is broken into three %ieces of e;ual lenths containing 0 links each. It is taken to a backsmith to $oin into a single continuous one . 3ow many links are to to be o%ened to make it < Ans : #.1) rass in lawn grows e;ually thick and in a uniform rate. It takes #4 days for > cows and 6 days for 0 cows to eat the whole of the grass. 3ow many cows are needed to eat the grass in 6 days.< Ans : # g / grass at the beginning r / rate at which grass grows, %er day y / rate at which one cow eats grass, %er day n / no of cows to eat the grass in 6 daysg #4Br ! > B #4 B y g 6Br ! 0 B 6 B y g 6Br ! n B 6 B y -olving, n ! #. 1. &athers age is three years more than three times the sons age. After three years, fathers age will be ten years more than twice the sons age. +hat is the fathers %resent age.
Ans: 00 years. 2# marks) #. &ind the values of each of the al%habets. ( ( - ( C ( ////////// D E ( 'Ans: 0#6 2# marks)0. here are # %oles with a constant distance between each %ole A car takes #4 second to reach the 1#th %ole. 3ow much will it take to reach the last %ole.Ans: 41.4 seconds 2# marks) =et the distance between two %oles ! 3ence 11:#4::1 :<4. A car is travelling at a uniform s%eed. he driver sees a milestone showing a #/digit number. After travelling for an hour the driver sees another milestone with the same digits in reverse order. After another hour the driver sees another milestone containing the same two digits. +hat is the average s%eed of the driver.Ans: 4 km%h 24 marks). he minute and the hour hand of a watch meet every 6 minutes. 3ow much does the watch lose or gain time and by how much<Ans: ainsF *11 minutes 24 marks)6. @am, -hyam and umnaam are friends. @am is a widower and lives alone and his sister takes care of him. -hyam is a bachelor and his neice cooks his food and looks after his house. umnaam is married to ita and lives in large house in the same town. ita gives the idea that all of them could stay together in the house and share monthly e%enses e;ually. uring their first month of living together, each %erson contributed @s.#. At the end of the month, it was found that @s # was the e%ense so the remaining amount was distributed e;ually among everyone. he distribution was such that everyone recieved a whole number of @u%ees. 3ow much did each %erson recieve<
Ans. @s # 24 marks) 23int: @ams sister, -hyams neice and umnaams wife are the same %erson)>. &our %ersons A, ?, 7 and are %laying cards. 'ach %erson has one card, laid down on the table below him, which has two different colours on either side. he colours visible on the table are @ed, reen, @ed and ?lue. hey see the color on the reverse side and give the following comment.
A
: Gellow or reen
B
: (either ?lue nor reen
C
: ?lue or Gellow
D
: ?lue or Gellowiven that out of the 4 %eo%le # always lie find out the colours on the cards each %erson.
Infosys Sample Test #4
1. @e%lace each letter by a digit. 'ach letter must be re%resented by the same digit and no beginning letter of a word can be . ( ' ( ' ( ' ( '/////// ' (Ans: !1, ( ! 8 ,' ! #, ! > #. Ann, ?oobie, 7athy and ave are at their monthly business meeting. heir occu%ations are author, biologist, chemist and doctor, but not necessarily in that order. ave $ust told the biologist that 7athy was on her way with doughnuts. Ann is sitting across from the doctor and net to the chemist. he doctor was thinking that ?oobie was a goofy name for %arents to choose,but didntsay anything. +hat is each %ersons occu%ation<Ans: -ince ave s%oke to the biologist and Ann sat net to the chemist and across the doctor, 7athy must be the author and Ann the biologist. he doctor didnt s%eak, but avid did, so ?obbie is the doctor and ave the chemist.

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